This article shows the prevalence of contact allergy in dental technicians as an occupational disease. Allergy symptoms can make it difficult or even impossible to work in the laboratory. The main airborne and contact allergens were described: methyl methacrylate, dental alloys and steel ingredients used in the dental laboratory. Attention was paid to limiting the exposure to allergic substances through using personal protective equipment or alternative materials and methods when producing dental prostheses or removable braces. Raising awareness with regard to exposure to contact allergens may help to reduce the allergy symptoms and increase the efficiency of dental technicians’ work.

Key words: contact allergy, dental technician, methylmethacrylates, dental alloys.